On Monday, June 4, 1990 at 8:38:36 AM UTC-4, John Mullen wrote:

Exactly what is the difference between AWD and 4WD. I'm looking for a
brief description as well as technical description of the working parts. Thanks.
.signature ?????
John J. Mullen [email protected]
CSD/RI Operator, Computer Science
Office: WeH 3610, Office Phone: (412) 555-CARZ

In "alt usage english", do I hear that AWD is 4WD? All wheel drive is four wheel drive? Just sayin' ... oh, I mean askin'.

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On Monday, February 13, 2023 at 8:38:51 AM UTC-5, J. J. Lodder wrote in alt.usage.english.:

bruce bowser <[email protected]> wrote:

On Monday, June 4, 1990 at 8:38:36 AM UTC-4, John Mullen:

Exactly what is the difference between AWD and 4WD. I'm looking for a brief description as well as technical description of the working parts.

In "alt usage english", do I hear that AWD is 4WD? All wheel drive is
four wheel drive? Just sayin' ... oh, I mean askin'.

No. The difference between AWD and 4WD (or 4x4) is that AWD vehicles
have a central differential that allows the front and rear axles
to run at different rotation rates. (which helps for taking turns)

So AWD can be left on when running on hard road surfaces,
while classic 4WD/4x4 should/must be switched off.
In other words, AWD is idiot-proof,
while classic 4x4 requires some driver competence.

This is just the basics,

So All wheel drive sends equal power train to both front and real wheels. OK. Great.
But, what does 4WD SL mean? what does 4WD S mean? what does 4WD SV mean? What does "Intelligent 4 wheel-drive" mean? is this the same as a 4x4? or how about an Aerostar E-4WD? is that the same? What is a 4dr 4x4? And how is a Toyota 1988 DLX 4wd Tercel
Wagon different.

All of these questions aren't country, language or brand specific, but model specific, I'd say.

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On 2/14/2023 12:08 PM, bruce bowser wrote:

On Monday, February 13, 2023 at 8:38:51 AM UTC-5, J. J. Lodder wrote in alt.usage.english.:

bruce bowser <[email protected]> wrote:

On Monday, June 4, 1990 at 8:38:36 AM UTC-4, John Mullen:

Exactly what is the difference between AWD and 4WD. I'm looking for a
brief description as well as technical description of the working parts. >>> In "alt usage english", do I hear that AWD is 4WD? All wheel drive is

four wheel drive? Just sayin' ... oh, I mean askin'.

No. The difference between AWD and 4WD (or 4x4) is that AWD vehicles
have a central differential that allows the front and rear axles
to run at different rotation rates. (which helps for taking turns)

So AWD can be left on when running on hard road surfaces,
while classic 4WD/4x4 should/must be switched off.
In other words, AWD is idiot-proof,
while classic 4x4 requires some driver competence.

This is just the basics,

So All wheel drive sends equal power train to both front and real wheels. OK. Great.
But, what does 4WD SL mean? what does 4WD S mean? what does 4WD SV mean? What does "Intelligent 4 wheel-drive" mean? is this the same as a 4x4? or how about an Aerostar E-4WD? is that the same? What is a 4dr 4x4? And how is a Toyota 1988 DLX 4wd Tercel

Wagon different.

All of these questions aren't country, language or brand specific, but model specific, I'd say.

Thanks so much for clarifying all that!
The 23 year wait was worth it!

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971

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On 2/8/2023 12:49, bruce bowser wrote:

On Monday, June 4, 1990 at 8:38:36 AM UTC-4, John Mullen wrote:

Exactly what is the difference between AWD and 4WD. I'm looking for
a brief description as well as technical description of the working
parts. Thanks. .signature ????? John J. Mullen
[email protected] CSD/RI Operator, Computer Science Office:
WeH 3610, Office Phone: (412) 555-CARZ

In "alt usage english", do I hear that AWD is 4WD? All wheel drive
is four wheel drive? Just sayin' ... oh, I mean askin'.

AWD is power to all wheels, all the time. 4WD can be selected from 2WD
to 4WD. Some have a "S (slow) or L (low)" range in addition to "high"
4WD where it gears down, for off-road driving or climbing out of mud,
snow, etc.

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